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3365 Views 5 Replies Latest reply: Jan 12, 2008 7:46 AM by Anonymous Brian
Currently Being ModeratedNov 2, 2007 3:53 AM (in response to triplexone)1. Try doing a Parameter RAM reset - hold down apple/option/p/r keys at start up and wait for three chimes before releasing the keys.
2. Google for a utility called Lab Tick that allows you to set the backlight level whatever the ambient light is.Assorted Mac's and PC's, 5th Gen 60GB iPod - OSX 10.5 WinXP RedHat -
Currently Being ModeratedNov 3, 2007 6:53 AM (in response to iVmichael)Thank you very much for your replay.
I did the PR reset once before but no help. And I know the software LabTick but it is for forcing the backlit lighting up in the daytime. My situation is that in my room with the lamp on in the evening, it still light up automatically and I can close it with F8 key. I think the lamp is bright enough to see my keyboard clearly which means I didn't need the backlit in this situation. It worked fine before, get problem now.
Any one knows if there are some hidden parameters to fix it? I'll appreciate it.Macbook Pro, Mac OS X (10.5)
Currently Being ModeratedNov 25, 2007 5:07 PM (in response to triplexone)You can still use Lab Tick and use it to force the keyboard backlight to stay off. Just drag the slider in Lab Tick down completely (or press the appropriate hotkey if you have set one) and check the box in the preferences to keep Mac OS X from adjusting the illumination on its own. Leave Lab Tick running and you're good.
Hope that helps,
AlexPowerMac G5 & PowerBook G4, Mac OS X (10.5.1)
Currently Being ModeratedJan 9, 2008 4:40 AM (in response to triplexone)Thank you very much. Lab Tick does can force the backlit from lighting up. So can the F8 key.Macbook Pro, Mac OS X (10.5)
Currently Being ModeratedJan 12, 2008 7:46 AM (in response to triplexone)I was frustrated with the lack of control over the keyboard backlight, so I hacked together a simple command-line utility that can set the Macbook Pro's (and the Powerbook G4's) keyboard backlight to an arbitrary level.
Of course, one can use this utility to manually adjust the backlight level of the keyboard, but it can be invoked programatically (e.g. in shell-scripts) as well. I have found that it is particularly useful as a "silent alarm." The following mini-script, for example, causes the keyboard backlight to flash on and off every second, which is surprisingly noticeable:
while true; do
backlight 1.0; sleep 1
backlight 0.0; sleep 1
Well, anyway, you get the idea. If anyone else has a nerdy desire to fiddle with their keyboard backlight using the command-line, I have posted my utility here:
The zip file contains only the source code, so you will need the Apple Development Tools to compile. Let me know if you experience any problems,
- BrianMacbook Pro, Mac OS X (10.5.1), Shiny